The research project Arctic Sea Ice and Greenland Ice Sheet Sensitivity (ice2ice) is the first concerted effort to tackle the first order question of the cause and future implications of past abrupt climate changes in Greenland, a key hypothesis being that Arctic and sub-Arctic sea ice cover excerts important controls on past and future Greenland temperature and ice sheet variations. In Ice2Ice this will be done by:

Complementary and cross-institutional teams

a) describing the nature, timing and extent of the observed abrupt events across climate archives,